CN104632418A - Flexible speed limiting device of automotive engine - Google Patents
Flexible speed limiting device of automotive engine Download PDFInfo
- Publication number
- CN104632418A CN104632418A CN201510021702.2A CN201510021702A CN104632418A CN 104632418 A CN104632418 A CN 104632418A CN 201510021702 A CN201510021702 A CN 201510021702A CN 104632418 A CN104632418 A CN 104632418A
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- torque arm
- speed
- speed limit
- fixed
- pull arm
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Abstract
The invention discloses a flexible speed limiting device of an automotive engine. According to the structure of the flexible speed limiting device, an inner pull arm is fixed to an accelerator connecting rod of a fuel injection pump through a bolt, the inner pull arm and an outer pull arm are fixed together through a connecting shaft, a connecting shaft penetrates through a spring, and the two ends of the spring are fixed to a polished hole in the inner pull arm and a polished hole in the outer pull arm. A baffle is arranged on the periphery of the inner pull arm and the outer pull arm. The baffle is fixed to the outer pull arm, and the inner pull arm and the outer pull arm are integrated under the action of the spring force and the supporting force of the baffles. An outer sleeve of a speed limiting drawing wire is fixed to the upper end of the outer pull arm through a pressing plate. One end of the speed-limiting drawing wire is fixed to the inner pull arm through a first fastening pin. The other end of the speed-limiting drawing wire penetrates through the outer sleeve to be connected to a speed limiting executor. One end of an accelerator drawing wire is fixed to the outer pull arm through a second fastening pin, and the other end of the accelerator drawing wire is connected with an accelerator pedal of an automobile. The accelerator drawing wire and the speed-limiting drawing wire are controlled by an automotive speed sensor, an electric control unit and the speed-limiting executor to act to achieve flexible speed limiting.
Description
Technical field
The invention belongs to engine components, be specifically related to the flexible speed limiting device of a kind of vehicular engine.
Background technique
One of traffic accident that passenger stock causes at expressway is exactly drive over the speed limit, so there is the mark of speed limit various countries according to the actual road conditions of locality.From the second half year in 2012, expressway coach transportation limiting vehicle speed value must not exceed 80 kilometers per hour all over China; It is 60 kilometers/hour at part way speed limit.
Speed limit technology for " high pressure common rail electric-controlled motor " is, is controlled the fuel injection quantity of motor by ECU (car load automatical control system) according to the speed of a motor vehicle, to reach the object of the adjustment speed of a motor vehicle.And some atypia states III, state IV (emission standard) motor, its speed limit measure be adopt mechanical pump add EGR and preprocessor.Adopt and simply oppositely draw accelerator mechanism, namely throttle is being subject to reclaiming under the effect being greater than gas pedal power, to reach the effect of regulation speed.But there are the following problems for this structure: when (1) speed limiting mechanism reclaims throttle, turning power is delivered in gas pedal by throttle control handle and accelerator drawing, then acts directly on driver's pin.Now driver has obvious pause and transition in rhythm or melody sense, and rebounding force is crossed conference and made driver's feels pain sometimes; (2) speed limiting mechanism is by controlling turning to of throttle with the ratio of driver's pedal force, and namely whose power is large, and throttle is just to walking over there.If that this structure is brought as a result, the operation of driver's cruelty, not only do not reach the effect of speed limit, and can speed limiting mechanism be damaged.A kind of flexible speed limiting mechanism that the present invention proposes can avoid the generation of the problems referred to above.
Summary of the invention
The object of the invention is, propose a kind of vehicular engine flexible mechanical speed limiting mechanism, make that mechanical governor Ji Xietiaoxie atypia state III is housed, the automobile of state IV motor obtains good speed limit.
The technical pattern taked for realizing the present invention of this object is: interior torque arm and outer torque arm are fixed together by coupling shaft, and spring penetrates coupling shaft, and the two ends of spring are fixed in the unthreaded hole above interior torque arm and outer torque arm.Inside and outside torque arm can be rotated mutually.Interior torque arm and the outer of outer torque arm are arranged with baffle plate, and baffle plate is fixed in outer torque arm, make inside and outside torque arm become as a whole under the effect of spring force with baffle plate support force.The overcoat of speed limit wire drawing is fixed on the upper end of outer torque arm by pressing plate, speed limit wire drawing is placed in overcoat.Interior torque arm is fixed on by the first pin for suppressing metal in one end of speed limit wire drawing; The other end is through being socketed on speed limit final controlling element outward.Outer torque arm is fixed on by the second pin for suppressing metal in one end of accelerator drawing; The other end is connected in the gas pedal of automobile by driving mechanism.Interior torque arm is provided with screw, interior torque arm is fixed on the throttle linkage of Injection Pump by bolt.
The principle of this device action is, the present invention is that interior torque arm is fixed on the throttle control handle of Injection Pump.Not under speed limit state, interior torque arm and outer torque arm rely on spring and baffle plate to form an entirety, drive throttle linkage to control Injection Pump oiling speed-raising with pulling of accelerator drawing.When the speed of a motor vehicle reaches limits value, speed limit wire drawing pulls outer torque arm, and outer torque arm overcomes the elastic force of spring, makes interior torque arm produce relative displacement with interior torque arm.Now, outer torque arm continues to rotate forward with the traction of accelerator drawing, and interior torque arm is under the pulling force effect of speed limit wire drawing, is rotated by throttle linkage to deceleration direction, reduces Injection Pump to refuel, and reaches the object of flexible speed limit.
Feature of the present invention and beneficial effect are that the action being controlled accelerator drawing and speed limit wire drawing by vehicle speed sensor, ECU (Electrical Control Unit) and speed limit final controlling element realizes flexible speed limit, makes driver's operation have comfortable feel.Because this apparatus structure is simple, take up room little, Be very effective, and the reliability of speed limiting mechanism and accelerator mechanism work can be ensured.Therefore can be applicable to being assemblied in applying with on the motor of mechanical pump of speed limit requirement.
Accompanying drawing explanation
Fig. 1 is the principle of the invention and structure diagram.
Fig. 2 is the assembly structure sketch of the embodiment of the present invention.
Embodiment
Structural principle of the present invention to be further described by embodiment below in conjunction with accompanying drawing.The flexible speed limiting device of vehicular engine, comprises outer torque arm, interior torque arm, spring, coupling shaft, baffle plate, pressing plate, two pins for suppressing metal, accelerator drawing, speed limit wire drawing, speed limit final controlling element, Injection Pump, ECU (Electrical Control Unit) and vehicle speed sensor etc.It specifically forms structure: interior torque arm 1 is fixed together by coupling shaft 4 with outer torque arm 2, and spring 3 penetrates coupling shaft, and the two ends of spring are fixed in the unthreaded hole above interior torque arm and outer torque arm, and inside and outside torque arm can be rotated mutually.Interior torque arm and the outer of outer torque arm are arranged with baffle plate 5, and baffle plate is fixed in outer torque arm, make inside and outside torque arm become as a whole under the effect of spring force with baffle plate support force.The overcoat 7 of speed limit wire drawing is fixed on the upper end of outer torque arm by pressing plate 8; Interior torque arm is fixed on by the first pin for suppressing metal 9 in one end of speed limit wire drawing; The other end is through being socketed on speed limit final controlling element 10 outward.Outer torque arm is fixed on by the second pin for suppressing metal 6 in one end of accelerator drawing 11; The other end is connected in the gas pedal of automobile by driving mechanism.Interior torque arm is provided with screw 12, interior torque arm is fixed on the throttle linkage 14 of Injection Pump 13 by bolt.
Speed limit final controlling element is connected by datawire with vehicle speed sensor 16 and ECU (Electrical Control Unit) 15, and ECU (Electrical Control Unit) will control the action of described speed limit wire drawing by speed limit final controlling element according to the information of vehicle speed sensor.
When automobile will refuel speed-raising, interior torque arm drives throttle linkage to rotate to the direction of refueling together with outer torque arm, and now the elastic force of spring is greater than the reaction force of spring between Injection Pump and throttle linkage, makes Injection Pump strengthen oil spout, the Accelerating Traveling of Automobiles.
When automobile speed reaches limit value, when automobile needs oil return to slow down, now by vehicle speed sensor, running speed is passed to ECU (Electrical Control Unit), ECU (Electrical Control Unit) controls speed limit final controlling element by torque arm in speed limit wire drawing and throttle linkage tractive, and the pulling force of now speed limit wire drawing is greater than the elastic force of spring.Outer torque arm keeps original position under the traction of accelerator drawing, and gas pedal can not be subject to strong reaction force.And interior torque arm pulls speed limit wire drawing to drive throttle linkage to rotate to subtracting oily direction, realize speed limit effect.
Owing to there being the regulating action of spring, the pin of driver can not feel stronger lifting force because of speed limit.Driving comfortability increases, and this apparatus structure improves the reliability of throttle and throttle rotating mechanism and speed limit driving mechanism.
Claims (5)
1. the flexible speed limiting device of vehicular engine, comprise outer torque arm, interior torque arm, spring, coupling shaft, baffle plate, pressing plate, two pins for suppressing metal, accelerator drawing, speed limit wire drawing, speed limit final controlling element, Injection Pump, ECU (Electrical Control Unit) and vehicle speed sensor, it is characterized in that: interior torque arm (1) and outer torque arm (2) are fixed together by coupling shaft (4), spring (3) penetrates coupling shaft, the two ends of spring are fixed in the unthreaded hole above interior torque arm and outer torque arm, and inside and outside torque arm can be rotated mutually; Interior torque arm and the outer of outer torque arm are arranged with baffle plate (5), and baffle plate is fixed in outer torque arm, make inside and outside torque arm become as a whole under the effect of spring force with baffle plate support force; The overcoat (7) of speed limit wire drawing is fixed on the upper end of outer torque arm by pressing plate (8); Interior torque arm is fixed on by the first pin for suppressing metal (6-9) in one end of speed limit wire drawing; The other end is through being socketed on speed limit final controlling element (10) outward, and outer torque arm is fixed on by the second pin for suppressing metal (9) in one end of accelerator drawing (11); The other end is connected in the gas pedal of automobile by driving mechanism.
2., according to the flexible speed limiting device of vehicular engine according to claim 1, it is characterized in that: described interior torque arm is provided with screw (12), by bolt, interior torque arm is fixed on the throttle linkage (14) of Injection Pump (13).
3. according to the flexible speed limiting device of vehicular engine according to claim 1, it is characterized in that: described speed limit final controlling element is connected by datawire with vehicle speed sensor (16) and ECU (Electrical Control Unit) (15), and ECU (Electrical Control Unit) will control the action of described speed limit wire drawing by speed limit final controlling element according to the information of vehicle speed sensor.
4. according to the flexible speed limiting device of the vehicular engine described in claim 1 or 3, it is characterized in that: when it refuels and raises speed, described interior torque arm drives throttle linkage to rotate to the direction of refueling together with outer torque arm, make Injection Pump strengthen oiling.
5. according to the flexible speed limiting device of the vehicular engine described in claim 1 or 3, it is characterized in that: when oil return is slowed down, by described vehicle speed sensor, running speed is passed to ECU (Electrical Control Unit), ECU (Electrical Control Unit) controls speed limit final controlling element by torque arm in described speed limit wire drawing and throttle linkage tractive, outer torque arm keeps original position under the traction of accelerator drawing, interior torque arm pulls speed limit wire drawing to drive throttle linkage to rotate to subtracting oily direction, realizes speed limit effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021702.2A CN104632418A (en) | 2015-01-15 | 2015-01-15 | Flexible speed limiting device of automotive engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021702.2A CN104632418A (en) | 2015-01-15 | 2015-01-15 | Flexible speed limiting device of automotive engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632418A true CN104632418A (en) | 2015-05-20 |
Family
ID=53211565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510021702.2A Pending CN104632418A (en) | 2015-01-15 | 2015-01-15 | Flexible speed limiting device of automotive engine |
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| Country | Link |
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| CN (1) | CN104632418A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4411565A1 (en) * | 1994-04-02 | 1995-10-05 | Vdo Schindling | Drive control for vehicle IC engine |
| US5568797A (en) * | 1991-12-26 | 1996-10-29 | Landerretche; Alain | Power control assistance device for motor vehicles |
| EP1375233A1 (en) * | 2002-06-26 | 2004-01-02 | LANDERRETCHE, Alain | Accelerator pedal with integrated return force control |
| CN2652705Y (en) * | 2003-07-07 | 2004-11-03 | 上海大众智能设备有限公司 | Automobile intelligent speed limiter |
| CN201677748U (en) * | 2010-03-23 | 2010-12-22 | 比亚迪股份有限公司 | Pedal |
| CN204398885U (en) * | 2014-12-15 | 2015-06-17 | 东风康明斯发动机有限公司 | A kind of car load Speed Limitation Devices mating mechanical engine |
-
2015
- 2015-01-15 CN CN201510021702.2A patent/CN104632418A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5568797A (en) * | 1991-12-26 | 1996-10-29 | Landerretche; Alain | Power control assistance device for motor vehicles |
| DE4411565A1 (en) * | 1994-04-02 | 1995-10-05 | Vdo Schindling | Drive control for vehicle IC engine |
| EP1375233A1 (en) * | 2002-06-26 | 2004-01-02 | LANDERRETCHE, Alain | Accelerator pedal with integrated return force control |
| CN2652705Y (en) * | 2003-07-07 | 2004-11-03 | 上海大众智能设备有限公司 | Automobile intelligent speed limiter |
| CN201677748U (en) * | 2010-03-23 | 2010-12-22 | 比亚迪股份有限公司 | Pedal |
| CN204398885U (en) * | 2014-12-15 | 2015-06-17 | 东风康明斯发动机有限公司 | A kind of car load Speed Limitation Devices mating mechanical engine |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20150520 |